Mustafa Blue died of positional asphyxia, the Clark County coroner’s office said Tuesday.

The boy was found unresponsive about 6:35 a.m. Dec. 22 inside a residence on the 500 block of East St. Louis Avenue, near Las Vegas Boulevard, Metropolitan Police Department spokeswoman Laura Meltzer said at the time.

Mustafa died shortly after arriving at Sunrise Hospital and Medical Center.

How to navigate the trio of new freeway on-ramps from Martin Luther King Boulevard. (Mick Akers/Las Vegas Review-Journal)

Extreme weather closes Scenic Loop in Red Rock Canyon

High winds and flooding closed the Scenic Loop in Red Rock Canyon National Conservation area Thursday. Minor flooding across Highway 159 caused drivers to slow, but didn't close the road. (K.M. Cannon/Las Vegas Review-Journal) @KMCannonPhoto

Learning live-saving techniques in Stop the Bleed class

Leslie Shaffer, an AMR paramedic, shows how to control bleeding during a Stop the Bleed course at the Summerlin Library. The class is designed to teach anyone how to control and stop life-threatening bleeding. (Mia Sims/Las Vegas Review-Journal)

Tourists break out the umbrellas. But Brian Herting of Lincoln, Nebraska, dons shorts and a T-shirt, as he makes his way through downtown Las Vegas. (K.M. Cannon/Las Vegas Review-Journal) @KMCannonPhoto

The former Las Vegas home of Chicago mob enforcer, Tony Spilotro, is now for sale. Spilotro, who was portrayed by Joe Pesci in the film Casino, is the original owner of the home at 4675 Balfour Drive, built in 1974. (Samia DeCubas/Las Vegas Review-Journal)

UNLV forward Joel Ntambwe talks about his play at this point in the season. Video by Mark Anderson/Las Vegas Review-Journal

Sam Schmidt chats about hectic off-season

IndyCar team owner Sam Schmidt and lead driver James Hinchcliffe chat about the hectic off-season at the SpeedVegas high-performance driving facility outside of Las Vegas, Nevada, on January 10, 2018. (Ron Kantowski/Las Vegas Review-Journal)

Opportunity Village's Magical Forest added 1 million lights and a synchronized music show visible from all over the forest this year. The holiday attraction, which began in 1991, has a train, rides, food and entertainment along with the light displays. (Heidi Knapp Rinella/Las Vegas Review-Journal)

Siegel Cares delivers bagels to families in need

Since Thanksgiving, Mark Lenoir of Siegel Cares, has been delivering leftover Bagelmania bagels to families staying at the Siegel Suites.

Dan Barnson steps down

Arbor View football coach Dan Barnson stepped down Friday after 12 seasons at the helm. Under Barnson, the Aggies won 104 games and became one of the top programs in Las Vegas. The Aggies went 12-2 in 2018 and won a region championship for the first time in program history. Barnson loves Friday nights, but said the 12-month commitment was getting exhausting.